ACIS Flight Software Housekeeping Channels
ACIS Flight S/W reports instances of specific housekeeping channels, assembling them into telemetry packets to be written at 64 second intervals, or less often if output buffer space is unavailable. Each channel is accompanied by a value, only the most recent appearing in the packet, along with the number of times that the channel was reported during the interval.
Id	Channel	Alert	Description	Value	Comment
0	SWSTAT_VERSION	NONE	Report Flight Software Version Number	flight s/w version number	Reported in every housekeeping packet; a sudden change to version 11 indicates a cold boot
1	SWSTAT_SWHOUSE_RANGE	YELLOW	Housekeeping report index too large; report ignored	bad h/k index value	Possible telemetry corruption
2	SWSTAT_SWHOUSE_SKIPPED	NONE	No telemetry buffer available for new software housekeeping packet		Frequently reported after switching to format 1 or 2 from format 4, 5, or 6
3	SWSTAT_TIMERCB_INVOKE	NONE	Counts the number of times the 0.1 second BEP interrupt times has been called		Reported in every housekeeping packet; the usual count is 640
4	SWSTAT_FEPLOCK_TIMEOUT	RED	Timed out while waiting for a semaphore to lock a FEP command	FEP being locked
5	SWSTAT_FEPLOCK_POWEROFF	RED	FEP unpowered while waiting for a semaphore to lock a FEP command
6	SWSTAT_FEPLOCK_RESET	YELLOW	FEP entered reset state while waiting for a semaphore to lock a FEP command
7	SWSTAT_FEPLOCK_NOIO	RED	BEP-FEP command lock initiated but no BEP-FEP mailbox defined
8	SWSTAT_FEPREPLY_TIMEOUT	YELLOW	BEP command sent to FEP but BEP timed out waiting for a reply	FEP waiting to reply	This usually indicates that a startScience command was issued while the previous run was still in progress
9	SWSTAT_FEPREPLY_POWEROFF	RED	BEP command sent to FEP but FEP powered down while BEP waited for a reply
10	SWSTAT_FEPREPLY_RESET	RED	BEP command sent to FEP but FEP was reset  while BEP waited for a reply
11	SWSTAT_FEPREPLY_NOIO	RED	Fep Wait: No mailbox	unused	Suspect corruption of BEP D-CACHE or I-CACHE; warm boot the BEP; cold boot if the error persists
12	SWSTAT_SCI_STOPRUN	NONE	Science run commanded to stop		Expected whenever a stopScience command is executed to terminate a science run
13	SWSTAT_SCI_STOPRUN_IDLE	NONE	Science run commanded to stop when it was already idle	intended result, either IDLE or INHIBITED_IDLE	Expected whenever a stopScience command is executed but nothing is running in science task
14	SWSTAT_SCI_STOPRUN_RSTOP	NONE	Science run commanded to stop while it was in progress	address of the current ScienceMode object	Expected whenever a stopScience command is executed to terminate a science run
15	SWSTAT_SCI_STARTRUN	NONE	Science run commanded to start	commandIdentifier of startScience command	Expected whenever a startScience command is executed to begin a science run
16	SWSTAT_SCI_STARTRUN_BUSY	YELLOW	Science run commanded to start when a run was already in progress; the latter was terminated	intended state, i.e., either SCIENCE_RUNNING or SCIENCE_INHIBITED_RUN	This often occurs when the previous run was in rawor histogram mode and insufficient time has been scheduled to telemeter the BEP output buffers before starting the next science run
				bias thief and TE Science running simultaneously;  system time returned; bias thief stopped
17	SWSTAT_SCI_STARTRUN_RUNNING	YELLOW	Science run commanded to start while it is already in the process of starting up; the new command is ignored	startScience commandIdentifier
18	SWSTAT_SCI_STARTRUN_RSTOP	YELLOW	Science run commanded to start when a run was already in progress; the latter was terminated	address of the current ScienceMode object: &smTimedExposure or &smContClocking
19	SWSTAT_SCI_EXPSTART_ZERO_EXPNUM	YELLOW	The exposure number in a FEPexpRec from a FEP is zero; it is replaced by 0xffffffff		If it occurs occasionally, suspect corruption (SEU) of the BEP-FEP ring buffer. If it persists, suspect corruption of BEP D-CACHE or I-CACHE; warm boot the BEP; cold boot if this doesn't fix it
20	SWSTAT_SCI_EXPEND_EXPNUM	YELLOW	The exposure number in a FEPexpEndRec doesn't match  the most recent FEPexpRec	expnum in FepexpEndRec
21	SWSTAT_SCI_EXPSTART_NOEND	YELLOW	No FEPexpEndRec in FEP ring buffer	expnum in FepexpEndRec
22	SWSTAT_INTR_FEPBUS	RED	Fatal FEP Bus Interrupt	contents of Mongoose extended cause register	Typically caused by the BEP attempting to read or write to a powered-down FEP
23	SWSTAT_TE_SHORT_DUMP_TLM	YELLOW	Timed Exposure parameter block too large to fit in a telemetry packet	packet truncated to this number of words	Suspect corruption of BEP D-CACHE or I-CACHE; warm boot the BEP; cold boot if the error persists
24	SWSTAT_2D_SHORT_DUMP_TLM	YELLOW	Timed exposure parameter block and 2-D window block too large to fit in a telemetry packet		Suspect corruption of BEP D-CACHE or I-CACHE; warm boot the BEP; cold boot if the error persists
25	SWSTAT_TE_BAD_FEP_MODE	RED	Unrecognized Timed Exposure FEP Mode	bad FEP Mode	Suspect a fepMode field in the uplinked loadCcBlock or loadTeBlock command that is illegal for the current BEP flight software version
26	SWSTAT_TE_BAD_BEP_MODE	RED	Unrecognized Timed Exposure BEP Mode	bad BEP Mode	Suspect a bepPackingMode field in the uplinked loadCcBlock or loadTeBlock command that is illegal for the current BEP flight software version
27	SWSTAT_CCD_NULL_SETTING	YELLOW	Unassigned ccdId/queryId setting in DEA housekeeping block request	bad setting index	Suspect a bad field in a loadDeaBlock command
28	SWSTAT_CMDECHO_NULL	YELLOW	Null packet pointer passed to method		Suspect corruption of BEP D-CACHE or I-CACHE; warm boot the BEP; cold boot if the error persists
29	SWSTAT_CMDECHO_MISMATCH	YELLOW	Original command packet isn't the same as the one being reported	BEP address of the original command
30	SWSTAT_CMDECHO_BADLENGTH	YELLOW	The commandEcho packet is too long and is truncated	word length of echoed command
31	SWSTAT_CMDECHO_TRUNCATE	YELLOW	The command itself is too long and is truncated to 256 halfwords	halfword length of truncated command	Suspect a bad software serial command: the value of its first halfword must not exceed 256
32	SWSTAT_CMDECHO_DROPPED	NONE	The command was executed but there was no buffer available for the commandEcho packet	commandEcho pkt ID (Txings: TX block address)	This is a common condition when telemetry is saturated and multiple commands are executed
33	SWSTAT_CMDMAN_INVALID	RED	Invalid software serial command packet	halfword pkt length	The first halfword of the command (its length) is valid, but the second (the type) isn't
34	SWSTAT_CMDMAN_ERRCALLED	YELLOW	Incremented for each command error		This item is used to count the number of errors
35	SWSTAT_CMDMAN_ERRRETRY	YELLOW	Incremented for each error retry		This item is used to count the number of retries
36	SWSTAT_CMDMAN_HANDLED	NONE	Incremented for each executed command		This item is used to count the number of executes
37	SWSTAT_CMDMAN_BADLENGTH	YELLOW	Bad command length (< 3 or > 256)	halfword length	Suspect a bad software serial command: the value of its first halfword must not exceed 256
38	SWSTAT_DEAMAN_PRAMWRITE	YELLOW	write to PRAM address out of bounds	PRAM index	Suspect a bad address in a writePram command
39	SWSTAT_DEAMAN_PRAMREAD	YELLOW	read from PRAM address out of bounds		Suspect a bad address in a readPram command
40	SWSTAT_DEAMAN_SRAMWRITE	YELLOW	write to SRAM address out of bounds	SRAM index	Suspect a bad address in a writeSram command
41	SWSTAT_DEAMAN_SRAMREAD	YELLOW	read from SRAM address out of bounds		Suspect a bad address in a readSram command
42	SWSTAT_DEAMAN_BADCNTLREG	RED	DEA control register out of bounds	offset in settingMap	Suspect corruption of BEP D-CACHE or I-CACHE; warm boot the BEP; cold boot if the error persists
43	SWSTAT_PHHIST_BADQUAD	RED	Bad quadrant mode while beginning to process a timed exposure histogram record from a FEP	bad quadrant mode	If it occurs occasionally, suspect corruption (SEU) of the BEP-FEP ring buffer. If it persists, suspect corruption of BEP D-CACHE or I-CACHE; warm boot the BEP; cold boot if this doesn't fix it
44	SWSTAT_PIX1X3_CORRUPTROW	YELLOW	Illegal row in 1x3 CC event candidate	row > 511
45	SWSTAT_PIX1X3_CORRUPTCOL	YELLOW	Illegal column in 1x3 CC event candidate	column > 1023
46	SWSTAT_PMTEHIST_BADQUAD	YELLOW	Bad quadrant mode when completing a timed exposure histogram packet	bad quadrant mode
47	SWSTAT_PIX3X3_CORRUPTROW	YELLOW	Illegal row in 3x3 CC event candidate	row > 1023
48	SWSTAT_PIX3X3_CORRUPTCOL	YELLOW	Illegal column in 3x3 CC event candidate	column > 1023
49	SWSTAT_FEPMAN_RINGRDINDX	RED	Bad FEP-BEP ring buffer read index	read index
50	SWSTAT_FEPMAN_RINGWRINDX	RED	Bad FEP-BEP ring buffer write index	write index
51	SWSTAT_PM_BADRECTYPE	RED	Bad BEP-FEP ring buffer record type	record type
52	SWSTAT_DEACCD_LOADINVALID	RED	CCD Cntl Start on invalid load	unused	Suspect corruption of BEP D-CACHE or I-CACHE; warm boot the BEP; cold boot if the error persists
53	SWSTAT_DEABOARD_ERROR	RED	DEA hardware error, returning slot ID and error code as two 16-bit integers	see comment	Several instances are to be expected at the start of a science run when id is 11 or 12 and the code is 1 or 3; PMON will not treat them as genuine alerts; otherwise, they indicate a possible error in a video board or in the BEP-DEA interface
54	SWSTAT_FEPCMD_MBOXSTATE	YELLOW	BEP-FEP mailbox not empty: still handling the previous command	prior mailbox state	If it occurs occasionally, suspect corruption (SEU) of the BEP-FEP ring buffer. If it persists, suspect corruption of BEP D-CACHE or I-CACHE; warm boot the BEP; cold boot if this doesn't fix it
55	SWSTAT_FEP_READMEM	NONE	Called for each FEP memory read request	FEP index	Used to report the number of FEP memory reads
56	SWSTAT_FEP_WRITEMEM	NONE	Called for each FEP memory write request		Used to report the number of FEP memory writes
57	SWSTAT_FEP_EXECMEM	NONE	Called for each FEP execute request		This is used to report the number of FEP executes
58	SWSTAT_FEP_STARTBIAS	NONE	FEPs commanded to create bias maps		These items are used to report the state of the science manager as it steps through the phases of the science run
59	SWSTAT_FEP_STOP	NONE	FEPs commanded to stop	abortFlag value
60	SWSTAT_FEP_STARTDATA	NONE	FEPs commanded to start TIMED or CCLK	TIMED or CCLK
61	SWSTAT_FEP_QUERY	NONE	FEP commanded to return status record	FEP index
62	SWSTAT_SMPROC_RSTOP	NONE	FEPs commanded to halt current activity
63	SWSTAT_SMWAITBIAS_ABORT	YELLOW	Task manager aborts the science mode which is waiting for bias to complete	task signal
64	SWSTAT_SMWAITEVENT_CAUGHT	YELLOW	Task manager sends a signal to the science mode which is waiting for events
65	SWSTAT_SMWAITEVENT_ABORT	YELLOW	Task manager aborts the science mode which is waiting for events
66	SWSTAT_SMRABORT	NONE	The science mode is requesting that the FEPs and science tasks abort the run	error code
67	SWSTAT_SCI_DUMPFAILED	YELLOW	The science manager is unable to dump the parameter block and/or window block to telemetry
68	SWSTAT_SCI_SETUPFAILED	RED	The science manager is unable to set up the FEPs and video boards at the start of a run
69	SWSTAT_SCI_DEADUMPFAILED	YELLOW	The science manager is unable to dump housekeeping from the video boards at the start of a run
70	SWSTAT_SCI_DEACHECKFAILED	YELLOW	The science manager is unable to verify that the SRAM and PRAM copied to the video boards will not overheat components
71	SWSTAT_SCI_BIASFAILED	YELLOW	The science manager cannot start the bias thief or the latter terminates abnormally
72	SWSTAT_SCI_DATACOMPLETE	NONE	The science run has terminated		These items are used to report the state of the science manager as it steps through the phases of the science run
73	SWSTAT_SCI_BIASCOMPLETE	NONE	The bias-only run has terminated
74	SWSTAT_SCI_INHIBIT_ON	YELLOW	Science task switching into inhibited mode	new state	These are expected in response to the (rarely used) 1RMONIRM hardware serial commands
75	SWSTAT_SCI_INHIBIT_OFF	NONE	Science task switching out of inhibited mode
76	SWSTAT_FEPMAN_POWERON	NONE	FEP commanded to power up	FEP index	These are expected when the BEP is commanded to power FEPs and video boards up and down
77	SWSTAT_FEPMAN_POWEROFF	NONE	FEP commanded to power down
78	SWSTAT_FEPMAN_STARTLOAD	NONE	BEP starting to load a program into a FEP
79	SWSTAT_FEPMAN_ENDLOAD	NONE	FEP program loaded and (possibly) running
80	SWSTAT_DEACCD_POWERON	NONE	DEA commanded to power up video board	board id - 1
81	SWSTAT_DEACCD_POWEROFF	NONE	DEA commanded to power down video board
82	SWSTAT_SCI_EXPSTART_FEPTIME	YELLOW	Reported FEP timestamp exceeds 25 bits	reported time	The FEPs are passed only the low order 25 bits of the 100 kHz BEP clock; any excess bits indicate a corruption of the FEP-BEP ring buffer or a more serious corruption of D-CACHE or I-CACHE.
83	SWSTAT_FEPREPLY_BADTYPE	YELLOW	BEP-FEP mailbox reply type doesn't match the type of the original BEP command	FEP index	If it occurs occasionally, suspect corruption (SEU) of the BEP-FEP ring buffer. If it persists, suspect corruption of BEP D-CACHE or I-CACHE; warm boot the BEP; cold boot if this doesn't fix it
84	SWSTAT_FEPREC_POWEROFF	RED	Attempt to read from an unpowered FEP
85	SWSTAT_FEPREC_RESET	RED	Attempt to read from a reset FEP		This often indicates that the FEP has entered reset state because its watchdog timer expired, e.g., when no video pixels were received
86	SWSTAT_FEPCFG_NACK	RED	FEP rejects a single BEP command
87	SWSTAT_FEPDIST_NACK	NONE	FEP rejects a multi-FEP BEP command
88	SWSTAT_SYSCFG_IN_CLIP	RED	New configuration table value is clipped by mask	table index	The value of the configuration table entry will be changed by the BEP's mask; suspect a bad field in the changeConfigSetting command
89	SWSTAT_SCI_JITTERFAILED	RED	The science manager is unable to jitter the video board DACs at the start of a run
90	SWSTAT_SMWAITTRICKLE_ABORT	YELLOW	The science manager received an abort signal while waiting for the bias thief to end	task signal